Abstract: Apparatus, systems, and methods are provided for the production and application of carbon nanotubes (CNTs) on structures. Disclosed embodiments relate to apparatus, systems, and methods for the production of CNTs in an open tubular configuration on the inside surface of a steel capillary tubing. Disclosed embodiments of means for the production of CNTs include, self-assembly through a catalytic chemical vapor deposition (CVD) process. Applications of the apparatus, systems, and methods disclosed generally relate to sorbency, and more particularly, include adsorption, separation, and chromatographical application. Disclosed embodiments include apparatus, systems, and methods, for the production of high performance stationary phases of CNTs with advantageous temperate stability for high resolution chromatographical applications.